1) The closest star to Earth. a) the sun b) the moon 2) If the star is with high temperature, what is it's color? a) blue b) red 3) The largest known star in the universe with a measurement of 1700 solar radii. a) UY Scuti b) Rigel 4) The sun is under the luminosity class __________. a) V b) Ib 5) It is a star with 1400 light-years away from the Earth. a) Sirius b) Betelguese

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